TSV612 datasheet(10/19 Pages) STMICROELECTRONICS

10 / 19 page

Application information

TSV611, TSV611A, TSV612, TSV612A

10/19

Doc ID 15768 Rev 2

Application information

3.1

Operating voltages

The TSV61x can operate from 1.5 to 5.5 V. Their parameters are fully specified for 1.8, 3.3

and 5 V power supplies. However, the parameters are very stable in the full VCC range and

several characterization curves show the TSV61x characteristics at 1.5 V. Additionally, the

main specifications are guaranteed in extended temperature ranges from -40° C to +85° C.

3.2

Rail-to-rail input

The TSV61x are built with two complementary PMOS and NMOS input differential pairs.

The devices have a rail-to-rail input, and the input common mode range is extended from

VCC- -0.1 V to VCC+ +0.1 V. The transition between the two pairs appears at VCC+ -0.7 V. In

the transition region, the performance of CMRR, PSRR, Vio and THD is slightly degraded

(as shown in Figure 17 and Figure 18 for Vio vs. Vicm).

The device is guaranteed without phase reversal.

3.3

Rail-to-rail output

The operational amplifiers’ output levels can go close to the rails: less than 35 mV above

GND rail and less than 35 mV below VCC rail when connected to 10 kΩ load to VCC/2.

3.4

Driving resistive and capacitive loads

These products are micro-power, low-voltage operational amplifiers optimized to drive rather

large resistive loads, above 10 k

Ω. For lower resistive loads, the THD level may significantly

increase.

Figure 17.

Input offset voltage vs input

common mode at VCC = 1.5 V

Figure 18.

Input offset voltage vs input

common mode at VCC = 5 V

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

Input Common Mode Voltage (V)

0.0

1.0

2.0

3.0

4.0

5.0

-1.0

-0.8

-0.6

-0.4

-0.2

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

Input Common Mode Voltage (V)

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